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Q 1/14
Score 0
Jacob put yeast into a bowl of water and added a little sugar. He put the bowl in a warm
place. After a while, Jacob observed foam spilling out of the bowl. What kind of change is
occurring?
30
chemical change
physical change
scientific change
geological change
Q 2/14
Score 0
Mai filled two balloons with the same amounts of water, sugar, and yeast. She put one on
a table in the classroom. She put the other on a sunny windowsill. Why did Mai observe
that the balloon in the window grew larger in size?
30
The windowsill area is warmer
The classroom table area is the same temperature as the windowsill.
The windowsill area is cooler.
The classroom table area is warmer
14 questions
Q.
Jacob put yeast into a bowl of water and added a little sugar. He put the bowl in a warm
place. After a while, Jacob observed foam spilling out of the bowl. What kind of change is
occurring?
1
30 sec
Q.
Mai filled two balloons with the same amounts of water, sugar, and yeast. She put one on
a table in the classroom. She put the other on a sunny windowsill. Why did Mai observe
that the balloon in the window grew larger in size?
2
30 sec
Q.
Which of the following represents a chemical change?
3
30 sec
Q.
Which of these conditions has the greatest effect on how quickly a substance changes
from one state to another?
4
30 sec
Q.
Why does milk have to be kept in a refrigerator?
5
30 sec
Q.
Sergio tested a control solution at room temperature (25 °C), and measured how fast salt
dissolved in it. Next, he cooled solution A to 10 °C and heated solution B to 40 °C. How
quickly did the salt dissolve in solutions A and B compared to the control?
6
30 sec
Q.
Jessica is helping her mom cook dinner. After she adds salt to the boiling water, what will she have in the pot?
7
30 sec
Q.
Ben took a picnic to a sandy beach. He brought a garden salad and lemonade.
Which of these bestdescribes sand, a garden salad, and lemonade?
8
30 sec
Q.
Jimmy's mom boils water in a pot on the stove to make soup. Which of these ingredients
will dissolve in the water?
9
30 sec
Q.
How would a picture of the particles of a solid look like?
10
30 sec
Q.
. Each of the states of matter has specific characteristics. Which statement
correctlydescribes one of these characteristics?
11
30 sec
Q.
Shyanne needs to make a list of the physical properties of matter. Which of these should Shyanne
include in her list?
12
30 sec
Q.
Each state of matter has certain physical properties. Which is a physical property of a
gas?
13
30 sec
Q.
Different elements have different kinds of atoms. How can you tell an atom of one element
from an atom of another?
